Crate com_ptr

Source
Expand description

A smart pointer for Windows COM Interfaces.

ยงExamples

Creates a ComPtr from CreateDXGIFactory1 function.

use winapi::shared::dxgi::*;
use winapi::um::winnt::HRESULT;
use winapi::Interface;
use com_ptr::{ComPtr, HResult, hresult};

fn create_dxgi_factory<T: Interface>() -> Result<ComPtr<T>, HResult> {
    ComPtr::new(|| {
        let mut obj = std::ptr::null_mut();
        let res = unsafe { CreateDXGIFactory1(&T::uuidof(), &mut obj) };
        hresult(obj as *mut T, res)
    })
}